期刊
JOURNAL OF NANOPARTICLE RESEARCH
卷 15, 期 11, 页码 -出版社
SPRINGER
DOI: 10.1007/s11051-013-2090-7
关键词
Inhalation; Occupational exposure; Surface area; Particle number concentration; Decision logic
资金
- EU-FP6 program [NMP4-CT-2006-032777]
- EU-FP7 project NANODE VICE [NMP4-LA-2009-211464]
Manufactured nano-objects, agglomerates, and aggregates (NOAA) may have adverse effect on human health, but little is known about occupational risks since actual estimates of exposure are lacking. In a large-scale workplace air-monitoring campaign, 19 enterprises were visited and 120 potential exposure scenarios were measured. A multi-metric exposure assessment approach was followed and a decision logic was developed to afford analysis of all results in concert. The overall evaluation was classified by categories of likelihood of exposure. At task level about 53 % showed increased particle number or surface area concentration compared to background level, whereas 72 % of the TEM samples revealed an indication that NOAA were present in the workplace. For 54 out of the 120 task-based exposure scenarios, an overall evaluation could be made based on all parameters of the decision logic. For only 1 exposure scenario (approximately 2 %), the highest level of potential likelihood was assigned, whereas in total in 56 % of the exposure scenarios the overall evaluation revealed the lowest level of likelihood. However, for the remaining 42 % exposure to NOAA could not be excluded.
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